Tristan, Knight of the Underworld

Level 4 DARK/Zombie Effect
1800 ATK / 0 DEF

When this card is Normal Summoned: You can target 1 Zombie monster with 0 DEF in your GY; add it to your hand. Gains 300 ATK if you control another Zombie monster(s).

Rulings – Yugipedia

Printings:

Premium Gold: Return of the Bling: PGL2-EN009 (Gold Secret Rare) - 2015-03-19
Structure Deck: Zombie Horde: SR07-EN011 (Common) - 2018-11-01

Prices:

Cardmarket: 0.12 €
TCGplayer: $ 0.23